docs/kernel-parameters: Update descriptions for "mitigations=" param with retbleed

Updates descriptions for "mitigations=off" and "mitigations=auto,nosmt"
with the respective retbleed= settings.

Signed-off-by: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: corbet@lwn.net
Link: https://lore.kernel.org/r/20220728043907.165688-1-eiichi.tsukata@nutanix.com

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index c0fdb04a0435a6daf88492cbaf76adfb6aeac716..cc3ea8febc623e84abec9a28a73174c60fc1f57f 100644 (file)
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3176,6 +3176,7 @@
                                               no_entry_flush [PPC]
                                               no_uaccess_flush [PPC]
                                               mmio_stale_data=off [X86]
+                                              retbleed=off [X86]
 
                                Exceptions:
                                               This does not have any effect on
@@ -3198,6 +3199,7 @@
                                               mds=full,nosmt [X86]
                                               tsx_async_abort=full,nosmt [X86]
                                               mmio_stale_data=full,nosmt [X86]
+                                              retbleed=auto,nosmt [X86]
 
        mminit_loglevel=
                        [KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this